/*
 * Copyright (C) 2013 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.transitionseverywhere;


import ohos.agp.animation.Animator;
import ohos.agp.animation.AnimatorProperty;
import ohos.agp.components.Component;
import ohos.agp.components.ComponentContainer;
import ohos.agp.components.Image;

/**
 * This transition captures the rotation property of targets before and after
 * the scene change and animates any changes.
 */
public class Rotate extends Transition {

    private static final String PROPNAME_ROTATION = "harmony:rotate:rotation";
    private static boolean mRotated;

    @Override
    public void captureStartValues(TransitionValues transitionValues) {
        if (transitionValues.view instanceof Image) {
            transitionValues.values.put(PROPNAME_ROTATION, transitionValues.view.getRotation());
        }
    }

    @Override
    public void captureEndValues(TransitionValues transitionValues) {
        if (transitionValues.view instanceof Image) {
            mRotated = !mRotated;
            //transitionValues.values.put(PROPNAME_ROTATION, transitionValues.view.getRotation());
            transitionValues.values.put(PROPNAME_ROTATION,
                    mRotated ? (float) 135 : (float) 0);
        }
    }

    @Override
    public Animator createAnimator(ComponentContainer sceneRoot, TransitionValues startValues,
                                   TransitionValues endValues) {
        if (startValues == null || endValues == null) {
            return null;
        }
        final Component view = endValues.view;
        float startRotation = (Float) startValues.values.get(PROPNAME_ROTATION);
        float endRotation = (Float) endValues.values.get(PROPNAME_ROTATION);
        if (startRotation != endRotation) {
            view.setRotation(startRotation);
            return new AnimatorProperty(view).rotate(startRotation).rotate(endRotation);
        }
        return null;
    }
}
